As you pass from left to right and from one line to the next line below it, you are incrreasing the atomic number of each element, one proton at a time. As the protons increase, so do the electrons, and they fill up shells and start new shells. Chemical properties depend mainly on the number of electrons in the outermost shell (for transition state elements it doesn't work exactly by shells, since in the heavier elements it is possible for an electron in an inner shell to nonetheless be farther from the nucleus than some electrons in the outer shell, but that is an added complication). So, elements in the same group have the same number of outer, or valance electrons as they are known.
Elements similar to chlorine will be located in the same group(17).
Elements in the same group are most similar.
Beryllium (Be). This is because on the periodic table Be is located in the same group (column) as Calcium and is the highest element in that column. Elements of the same group have similar properties and their masses decrease the higher they are in the group.
Chlorine, Bromine, and Iodine. They are all in the same periodic group.
elements in the same group as nitrogen will have similar CHEMICAL properties because they have the same number of electrons in the outer shell. (this is according to Bohrs model of the atom, if you want a real confusing answer about valence shells etc. go look at quantam mechanics) So elements in group 7 are phosphurus, arsenic, selenium, tellurium, polonium, these will react with the same chemicals to from similar compounds however they are all solids unlike nitrogen. Elements with similar PHYSICAL properties are elements that are present as gases at room temperature (like nitrogen is) oxygen, fluorine, chlorine, hydrogen and all of group 8 the noble or inert gasses (although inert isn't really a valid term as they can react in the correct conditions)
Elements in the same group (column) have the same properties. All the elements in group one have similar properties. All the elements in group two have similar properties. And so on...
Sulphur and helium have entirely different properties. Sulphur has properties similar to group 16 elements. Helium has properties similar to group 18 elements.
Elements of same group have the same number of valence electrons and hence have similar properties.
Elements in the same group have similar properties. The groups are made according to the properties of elements. Elements in a group have an equal number of valence electrons.
The elements in the same groups usually do. Elements in the same group have same number of valence electrons and hence have similar chemical and physical properties.
Elements in the same group have similar physical and chemical properties.
Elements with similar physical and chemical properties are located in a group.
family
family
The elements in a group have the similar chemical properties dueto presence of same no of electrons in their outermost shell but they differ physically because physical properties are related to their atomic sizes from top to bottom in a group atomic size increases so their physical properties also differ.
a group of elements that have similar properties are arranged one on top of the other on the periodic table. These groups are also called families
Elements in the same group have same number of valence electrons and hence have similar chemical and physical properties.